lkml.org 
[lkml]   [2016]   [Oct]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [RESEND PATCH] scsi: ufs: fix race between clock gating and devfreq scaling work
On 2016-10-14 13:47, Martin K. Petersen wrote:
>>>>>> "Subhash" == Subhash Jadavani <subhashj@codeaurora.org> writes:
>
> Subhash> UFS devfreq clock scaling work may require clocks to be ON if
> Subhash> it need to execute some UFS commands hence it may request for
> Subhash> clock hold before issuing the command. But if UFS clock gating
> Subhash> work is already running in parallel, ungate work would end up
> Subhash> waiting for the clock gating work to finish and as clock
> gating
> Subhash> work would also wait for the clock scaling work to finish, we
> Subhash> would enter in deadlock state. Here is the call trace during
> Subhash> this deadlock state:
>
> Somebody from the UFS camp, please review!

As there was no review so far, i have moved this patch as first patch in
the new UFS bug fixes patch series ([PATCH v1 00/11] scsi: ufs: bug
fixes patch series #1) sent by me today.

Thanks,
Subhash

--
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project

\
 
 \ /
  Last update: 2016-10-18 02:20    [W:0.062 / U:0.736 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site